const http = require('http')
const server = http.createServer()

server.on('request',(req,res)=>{
    const url = req.url
    console.log('url',url)
    let content = '<h1>404 not found</h1>'
    if(url==='/'||url==='/index.html'){
        content='<h1>首页</h1>'
    }else if(url==='/about.html'){
        content='<h1>关于页面</h1>'
    }
    res.setHeader('Content-Type','text/html;charset=utf-8')
    res.end(content)
})

server.listen(80,()=>{
    console.log('运行在http://localhost')
})